Existence of invariant manifolds for smooth maps with singularities.- Absolute continuity.- The estimation of entropy from below through Lyapunov characteristic exponents.- The estimation of entorpy from above through Lyapunov characteristic numbers.- Plane billiards as smooth dynamical systems with singularities.Springer Book ArchivesDE
![Invariant Manifolds, Entropy and Billiards. Smooth Maps with Singularities [Paperback]](/itemImage/2/5/8/1/2_846188.jpg "Invariant Manifolds, Entropy and Billiards. Smooth Maps with Singularities [Paperback] xxx")